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Krakatau: The Resilient Volcanic Island

Discover the fascinating facts about Krakatau, a long-active volcanic island in Indonesia, known for its historic 1883 eruption that devastated nearby areas. Witness the island's survival and the return of diverse life over the decades since the cataclysmic event. Explore the evolving ecology of Rakata, from the first signs of post-eruption life to the flourishing biodiversity seen today. Learn about the significant impact of Krakatau's eruption on the global climate and the remarkable resilience of nature in reclaiming this once-devastated landscape. Join us on a journey through time as we delve into the story of Krakatau's destruction and subsequent regeneration.

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Krakatau: The Resilient Volcanic Island

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  1. Krakatau Facts • Volcanic Island in Indonesia • Between Java and Sumatra • About 7 km across • Rising 800 meters above sea level • Long active volcano • Eruptions over several days • 10 a.m., August 26, 1883: Explosion • Explosion = 150 megatons of dynamite • Heard 3600 km away in SE Australia • 4 km3 of ash shot 30 km high

  2. Remnant Island Survived • Rakata remained above sea level • Covered in 40 meters of ash • Temperatures at eruption 300o C to 850o C • No life observed

  3. The Damage • Krakatau and nearby islands sank • Tidal waves over 36 meters high • Destroyed 295 towns on Java and Sumatra • Killed over 35,000 people • Ash cloud affected world climate

  4. A Century Later: 1984-85 • Thick green rain forest • No pythons seen • 30 species of birds, 9 species of bats • Several species of rats and reptiles • Over 300 species of small animals • Life Covers a New Geography

  5. Life Returns to Rakata Return of life studied by scientists • Spring 1884: A tiny spider • Fall 1884: A few shoots of grass • 1886: 15 species of grass and shrubs • 1889: Large lizard eating crabs on coast • 1897: 49 species of grass and shrubs

  6. Decades Later • 1919: A large python; patches of forest • 1928: Almost 300 species of grasses • 1929: Several pythons seen; forests covered island

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